Czech Journal of Animal Science, 2007 (vol. 52), issue 6
The accuracy of FOM instrument used in on-line pig carcass classification in the Czech Republic
M. Šprysl, J. Čítek, R. Stupka, L. Vališ, M. Vítek
Czech J. Anim. Sci., 2007, 52(6):149-158 | DOI: 10.17221/2314-CJAS 
The objective of this study was to document the accuracy of the classification equipment used in the Czech Republic with respect to measurement errors in lean meat percentage prediction such as point of measurement error, equipment error as well as operator error. To this end, a total of 720 pigs were measured in one abattoir. One can say from the results that the correlations between correct and surrogate measurements of fat depth are high (0.95-0.98), for muscle thickness they are lower ranging from 0.49 to 0.88, and for lean meat percentage they are in the range of 0.85-0.95. The lowest correlation (0.49) was calculated for muscle depth measurement...
Effects of a clinoptilolite supplement in pig diets on performance and serum parameters
D. Prvulović, A. Jovanović-Galović, B. Stanić, M. Popović, G. Grubor-Lajšić
Czech J. Anim. Sci., 2007, 52(6):159-166 | DOI: 10.17221/2317-CJAS
The effects of clinoptilolite in pig&sbqua;s diets were examined on sixty Landrace × Yorkshire crossbred pigs of both sexes divided into two groups: 1. control group, with basal diets; 2. treatment, with basal diets supplemented with 5 g clinoptilolite per 1 kg diet (Cp group). Feed and water were available ad libitum. Individual live weights were recorded on days 45, 90 and 135 of the experiment. Feed consumptions were recorded weekly. Blood was drawn from the anterior vena cava of each pig at day 135 for the determination of serum biochemical parameters. During the first 90 days of the experiment pigs from the Cp group had higher body...
Selenium content in tissues and meat quality in rabbits fed selenium yeast
A. Dokoupilová, M. Marounek, V. Skřivanová, P. Březina
Czech J. Anim. Sci., 2007, 52(6):165-169 | DOI: 10.17221/2319-CJAS
Ten weaned rabbits were fed a basal (control) diet containing 0.12 mg Se/kg. In 10 rabbits the basal diet was supplemented with Se-enriched yeast to increase the Se concentration to 0.50 mg/kg. Rabbits were slaughtered at the age of 11 weeks. Samples of meat, liver and hair of 4 rabbits from each group were taken and analyzed. No effect of Se on growth, feed conversion and dressing out percentage was observed. Loin and hindleg meat, liver and hair of control rabbits contained 93, 98, 521 and 267 μg Se/kg, respectively (average values). In treated rabbits the corresponding Se concentrations were 400, 389, 1 414 and 914 μg/kg. Supranutritional...
The effect of animal age on air pollutant concentration in a broiler house
M. Vučemilo, K. Matković, B. Vinković, S. Jakšić, K. Granić, N. Mas
Czech J. Anim. Sci., 2007, 52(6):170-174 | DOI: 10.17221/2318-CJAS
The results of a study assessing the level of airborne contamination in intensive broiler breeding facilities are presented. The content of corpuscular particulates of various origin (dust, bacteria, fungi), ammonia and carbon dioxide was determined. The investigations were conducted in a poultry house on a family farm in the area of moderate continental climate during spring 2006. The air concentration of bacteria ranged from 1.7 × 104 to 2.2 × 105 cfu/m3, of fungi from 9.8 × 103 to 8.5 × 104 cfu/m3, of dust from 1.8 to 4.8 mg/m3, and of ammonia from 4 to 27.47 ppm. Total dust and fungi concentrations...
In sacco macromineral release from selected forages
Z. Čerešňáková, P. Fľak, M. Poláčiková, M. Chrenková
Czech J. Anim. Sci., 2007, 52(6):175-182 | DOI: 10.17221/2316-CJAS
An in sacco technique was used to measure the release of Mg, Ca, Na, K from six forages - lucerne hay from the 1st and 2nd cut (LH1 and LH2), orchard grass hybrid Rela (GR) and hybrid Niva (GN), grass silage (GS), red clover silage treated with Feedtech (CSFT) and/or with Kofasil (CSKO). The forages differed in the content of macrominerals (Ca 15.82-3.66 g/kg DM; Mg 3.68-1.46 g/kg DM; Na 0.20-3.02 g/kg DM; K 21.57-34.79 g/kg DM), and large differences (P < 0.01) were also in the element release in the rumen between experimental forages. The lowest DM effective degradability was determined for grass forages (49.5%-51.5%)...
Repeated administration of different hormonal preparations for artificial propagation and their effects on reproduction, survival and blood biochemistry profiles of female tench (Tinca tinca L.)
J. Kouřil, M. Svoboda, J. Hamáčková, P. Kaláb, J. Kolářová, A. Lepičová, M. Sedova, L. Savina, P. Moreno Rendón, Z. Svobodová, T. Barth, B. Vykusová
Czech J. Anim. Sci., 2007, 52(6):183-188 | DOI: 10.17221/2315-CJAS
The aim of the study was to compare physiological statuses of stripped and not stripped tench females with ovulation induced by GnRHa or carp pituitary extract (CPE). The comparison was based on selected biochemical stress indices (cortisol, glucose), condition (TP, TGA), and cell membrane characteristics (ALT, AST, CK). In the first and in the second year, 37 and 29 tench females were monitored, respectively. No differences in the values of biochemical parameters in either period were found between the two groups of stripped female tench whose ovulation was induced by GnRHa and CPE, respectively. No significant differences in TP, TGA, ALT, AST and...